| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for blowing waste plastic in dust reducing furnace by which the high heat generation rate of a waste plastic or the ability of the waste plastic as a reducing material can be utilized effectively, when melting the waste plastic at a high temperature by setting a concrete operating condition for blowing the waste plastic in a dust reducing furnace. SOLUTION: When melt-reducing dust by charging a dust reducing furnace 1 having multiple tuyeres 9a and 9b with iron scrap, lumped dust mineral and coke, the upper end level of a coke bed is set between the uppermost tuyere 9b and the lower tuyere 9a and such air blasting that does not form any race way is made to the coke bed 13 from the lower tuyere 9a by using the tuyere 9a as a main tuyere and then a granular waste plastic is blown in the furnace 1.</p> |
